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AENOR - UNE 21820/5M

ELECTRICAL APPARATUS FOR POTENTIALLY EXPLOSIVE ATMOSPHERES. INTRINSIC SAFETY \"I\".

inactive
Organization: AENOR
Publication Date: 29 December 1993
Status: inactive
ICS Code (Electrical apparatus for explosive atmospheres): 29.260.20

Document History

UNE 21820/2M
February 16, 1994
ELECTRICAL APPARATUS FOR POTENTIALLY EXPLOSIVE ATMOSPHERES. INTRINSIC SAFETY \"I\".
A description is not available for this item.
UNE 21820/5M
December 29, 1993
ELECTRICAL APPARATUS FOR POTENTIALLY EXPLOSIVE ATMOSPHERES. INTRINSIC SAFETY \"I\".
A description is not available for this item.
UNE 21820/3M
December 29, 1993
ELECTRICAL APPARATUS FOR POTENTIALLY EXPLOSIVE ATMOSPHERES. INTRINSIC SAFETY \"I\".
A description is not available for this item.
UNE 21820/4M
December 29, 1993
ELECTRICAL APPARATUS FOR POTENTIALLY EXPLOSIVE ATMOSPHERES. INTRINSIC SAFETY \"I\".
A description is not available for this item.
UNE 21820
May 22, 1989
ELECTRICAL APPARATUS FOR POTENTIALLY EXPLOSIVE ATMOSPHERES. INTRINSIC SAFETY \"I\".
A description is not available for this item.

References

This document is superseded by:
UNE-EN 50020 - Electrical apparatus for potentially explosive atmospheres - Intrinsic safety 'i'
Published by AENOR on September 5, 2003
A description is not available for this item.
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